The separation is not a literal one – it is symbolic:
The church building serves as the scene for the portrayal of our Christian life:
We enter, and there at the entrance is a holy water font, in which we dip our fingers and recall our baptism. For it is in our baptism that we make our beginning in Christ. Then we move forward into the space where the people of God are gathered to worship him. From there we move forward again to receive the Eucharist. The sanctuary symbolizes heaven, and the altar that altar where Christ is ever high priest. Though indeed the curtain of the old temple was torn in two, this has not yet been fully realized. We still remain here on earth and are still, in a way, separated from heaven. We still wait for the resurrection of the dead, for the new heavens and the new earth.
But, though this separation remains – and we long for the day in which it will no longer be so – when we receive the Eucharist, there is great symbolism and great reality. The earthly priest brings what is upon the altar and gives it to us. Yet it is Jesus the High Priest himself coming from heaven to earth – first in the Incarnation, and now he comes and gives us his Body and his Blood.
Heaven is wedded to Earth. We long for the day when this shall be fully realized, for then we shall be with him. The old order of things will have passed away, and there will be no more death or mourning or crying or pain.